Door and floor tightening means



O. FLACK DOOR AND FLOOR TIGHTENING MEANS 2 Sheets-Sheet l Air124, 1934.

Filed Sept. l, 1932 INVENTOR 0 LA F' FLACK ATTORNEY ApriE24, 1934. L CK 1,956,151

DOOR AND FLOOR TIGHTENING MEANS Filed Sept. l, 1932 2 Sheets-Sheet 2 INVENTOR OL A F' Ft. AC K BY /x/l 6.

ATTORNEY Patente cl Apr. i 24, 1934 TPATENT OF' Uren STATES 4 Claims.

This invention relates to closure strips for door bases, and more particularly to automatic strips or plates which seal the apertures which are normally present between the door bottoms and the floor. Its principal object is to provide a closure element which will rise into operative position when a door is closed and will automatically fall into flush alignment with the floor When the door is opened.

A further object is to provide an effective closure mechanism of the above described character which will prevent the passage of air drafts under the closed doors and make it impossible for insects or the like to enter through the crevices which are generally to be found under the said doors.

Another object is a means for an effcient closure in the floor structure along the line of the aid strips, and another feature is a means for the drainage of any water which might seep into the said structure.

The device may be applied to single doors, double doors, sliding doors or any of the types in general use.

The foregoing and other objects and features of the invention are fully set forth and described in the following specification and claims and illustrated in the accompanying drawings, in which:

i Fig. 1 shows the device applied to double doors as seen from the outside of the building.

Fig. 2 is a fragmentary plan section on the line 2-2 of Figure 1.

Fig. 3 shows the doors open and the view in partial section below the floor line.

Fig. 4 is an enlarged fragmentary cross section on the line 4-4 of Figure 1.

Fig. 5 is an enlarged View of an end plate of the casing structure.

Fig. 6 shows a modified form of the invention as applied to a sliding door. This view is in partial section below the floor line.

Fig. '7 is a vertical cross section on the line '7-7 of Figure 6.

: Fig. 8 is a plan section on the line 8-8 of Figure 6.

Fig. 9 is an enlargement of the View shown in floor line being at 17. The closure strips 18 are here shown in operative position and covering the aperture which would normally occur under the doors. The position of the strips 18 is shown in plan View in Figure 2, where they are shown to overlap at 19; the doors open in the direction of the arrows 20.

The Construction of the device is best shown in Figure 4 and, referring to that view a closure strip 18 is pivotally mounted on the rod 30 and has a lower strip 21 on which a counter weight 22 is supported. Bufiers 23 receive the impact of the strike plates 24 of the door 15. The casing channel 25 is set in the floor 17 and incloses the working parts of the device. When the door 15 is moved into closed position; it strikes the buffe' 23 and the closure strip 18 is lifted in the direction of the arrow 24: to its operative position as indicated at 26. The strip 18 when in horizontal position rests on the tongue 27. Should any water accumulate in the channel casing; it is drained off by the pipe 28. The channel casing is closed at the ends by plates as that shown in Figure 5 at 29.

The device in modified form is applied to sliding doors in the manner illustrated in Figures 6 to ll inclusive. The main element of this construction is the deflector shoe 34 shown in perspective in Figure 11. This has a point element 35 and a beveled side 36 and an inclined frontal face 37 and a grooved guide member 38. It is attached to the lower front edge of the door as shown in Figure 6. The point 35 rests under the strip 13 and when the door 40, which is the equivalent of the doors 15, is slid in the direction of the arrow 41 to close the doorway; the shoe 34: runs under the said strip and lifts it on the bevel face 37 into its operative position as shown in the diagram in Figure 10. The guide plate 42 is attached to the door 40 and will hold the strip securely in position.

The strip is shown lowered in Figure 9 and its upward course is indicated at 43.

The Construction of the strip 18 and its' working parts is similar to that shown for doors which swing as in Figures 1, 2, 3 etc., one end plate being left open for the passage of the shoe 34.

While the invention is shown and described in its preferred form; it is not limited narrowly to that Construction in respect to mino' details, but is to be broadly construed in the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. In a device of the character described, a channel casing mounted transversely in a doorway and in Vertical alignment with the closure position of a door, a closure strip resting over the said channel casing and pivotally mounted in alignment therewith, a lower strip integral with the said closure strip and set at a right angle thereto and having a counterweight at its lower extremity which swings in an arc within the said channel casing, and means on the said closure strip to contact on a door element moving adjacent thereto.

2. In a device of the character described, a channel set transverse to a door-Way and aligned directly under the lower end of a door when the same is in closed position, a closure strip pivotally mounted and resting over the said channel and closing the same When the door is open, and

bui'fers on the said strip set to contact on an edge of the door when the same is moved toward a closed position and to then raise the strip to a vertical position, a lower strip element mounted in conjunction with the first named strip and at a right angle thereto, and a counterweight on the said lower strip and movable in an are within the aforesaid channel.

3. In a device of the character described, a channel casing set transversely in a door-way and vertically aligned with the closure position of a door hinged therein, the said casing having a curved bottom and one Vertical side wall and a rear wall which is contoured to receive a counterweight which swings on a lower strip attached to a closure strip which is pivotally mounted in the said channel and covers the same when the aforesaid door is open, and means on the said closure strip to engage the said door when the same is moved toward a closed position.

4. In a device of the character described, closure strips pivotally mounted transversely to a doorway and meeting at the center thereof, and one strip overlapping the other at this point, the said strips being counterbalanced by lower strips set at right angles thereto and having weight elements thereon, and the said lower strips hung in a channel which is set in Vertical alignment with the aforesaid door-way.

OLAF FLACK. 

